- AIG
- Allied World Assurance Group
- American Safety Insurance Group
- Atain Insurance Co
- Arch Insurance Group
- Aspen
- Atain
- Axis Insurance
- Avondale
- Beazley
- Berkley Specialty
- Cap Specialty
- Carolina Casualty
- Catalyst
- CFC Underwriting
- Chubb / ACE Group
- Crum & Forster Insurance Group
- CV Starr Companies
- Diamond State Group
- Devon Park Specialty
- DUAL
- E-Risk Services
- Euclid Managers / Hudson Professional
- Euler Hermes
- Evanston Insurance Company
- First Media Insurance
- Floodwatch
- Great American Companies
- HCC Specialty
- Hiscox USA
- HIIG/Houston International Insurance Group
- Hospitality Group
- Hudson Insurance Group
- Insurmark (Floodwatch)
- International Catastrophe Group (ICAT)
- Ironshore
- Kinsale
- Lexington
- Liberty International Underwriters
- Lloyd's of London
- Markel
- Mount Vernon
- National Fire and Marine Insurance Company
- NAS Insurance
- One Beacon
- Philadelphia Insurance Group
- Prime Insurance
- RLI
- Seneca Insurance Group
- Starstone (Torus)
- Steadfast
- Travelers Insurance Group
- Ullico
- United National Insurance
- USLI
- Validus
- Westchester
- Western World Insurance Group
- WKFC
- XL Insurance